1317026830 has 32 divisors (see below), whose sum is σ = 2730663936. Its totient is φ = 447993504.

The previous prime is 1317026813. The next prime is 1317026831. The reversal of 1317026830 is 386207131.

It is a junction number, because it is equal to n+sod(n) for n = 1317026792 and 1317026801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317026831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65184 + ... + 82963.

It is an arithmetic number, because the mean of its divisors is an integer number (85333248).

Almost surely, 2^1317026830 is an apocalyptic number.

1317026830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1317026830 is an abundant number, since it is smaller than the sum of its proper divisors (1413637106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317026830 is a wasteful number, since it uses less digits than its factorization.

1317026830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148288.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1317026830 is about 36290.8642773908. The cubic root of 1317026830 is about 1096.1370922470.

It can be divided in two parts, 13170 and 26830, that added together give a square (40000 = 200²).

The spelling of 1317026830 in words is "one billion, three hundred seventeen million, twenty-six thousand, eight hundred thirty".